Include <iostream> when using it in examples and benchmaks

benchmarks/brute_force_vs_bvh/brute_force_vs_bvh.cpp

@@ -15,6 +15,8 @@
 
 #include <boost/program_options.hpp>
 
+#include <iostream>
+
 int main(int argc, char *argv[])
 {
   Kokkos::ScopeGuard guard(argc, argv);

benchmarks/dbscan/ArborX_DBSCANVerification.hpp

@@ -18,6 +18,7 @@
 
 #include <Kokkos_Core.hpp>
 
+#include <iostream>
 #include <set>
 #include <stack>
 #include <vector>

benchmarks/dbscan/data.hpp

@@ -15,6 +15,7 @@
 #include <ArborX_Exception.hpp>
 #include <ArborX_HyperPoint.hpp>
 
+#include <iostream>
 #include <random>
 #include <vector>
 

benchmarks/execution_space_instances/execution_space_instances_driver.cpp

@@ -21,6 +21,7 @@
 #include <chrono>
 #include <cmath> // sqrt, cbrt
 #include <iomanip>
+#include <iostream>
 #include <numeric>
 #include <random>
 #include <utility>

benchmarks/union_find/union_find.cpp

@@ -20,6 +20,8 @@
 
 #include <boost/program_options.hpp>
 
+#include <iostream>
+
 #include <benchmark/benchmark.h>
 
 struct UnweightedEdge

examples/brute_force/brute_force.cpp

@@ -17,6 +17,8 @@
 
 #include <boost/program_options.hpp>
 
+#include <iostream>
+
 struct Dummy
 {
   int count;

examples/molecular_dynamics/example_molecular_dynamics.cpp

@@ -14,6 +14,7 @@
 
 #include <Kokkos_Random.hpp>
 
+#include <iostream>
 #include <type_traits>
 
 template <class MemorySpace>

examples/simple_intersection/example_intersection.cpp

@@ -13,6 +13,8 @@
 
 #include <Kokkos_Core.hpp>
 
+#include <iostream>
+
 // Perform intersection queries using the same objects for the queries as the
 // objects used in BVH construction that are located on a regular spaced
 // three-dimensional grid.

examples/triangle_intersection/triangle_intersection.cpp

@@ -14,6 +14,8 @@
 
 #include <Kokkos_Core.hpp>
 
+#include <iostream>
+
 // Perform intersection queries using 2D triangles on a regular mesh as
 // primitives and intersection with points as queries. One point per triangle.
 // __________

examples/viz/tree_visualization.cpp

@@ -19,6 +19,7 @@
 
 #include <algorithm>
 #include <fstream>
+#include <iostream>
 #include <random>
 
 // FIXME: this is a temporary place for loadPointCloud and writePointCloud